Model: 81-20126-A1

Proximity Switch

Special Features:

5/16 in. Top sensing; stainless steel

Properties:

Overall Length
3.880 inches
Overall Height
1.500 inches
Overall Width
1.500 inches
Body Length
3.120 inches
End Application
Davit, rhib p/n mrt3900 onboard 400 ft wagb coast guard vessels
Operating Tempurature Rating
Between -40.0 degrees fahrenheit and 221.0 degrees fahrenheit
Thready Qty Per Inch (tpi)
14 single threaded hole
Contact Action Stimulus
Increase
Thread Size
0.500 inches single threaded hole
Nonpile-up Contact Arrangement
2 two circuit, double break/double make, both positions maintained
Terminal Type
Wire lead
Contact Load Current Rating
2.0 amperes resistive load fourth voltage
Contact Load Current Rating
2.5 amperes resistive load third voltage
Contact Load Current Rating
3.0 amperes resistive load fifth voltage
Contact Load Current Rating
0.5 amperes resistive load eighth voltage
Contact Load Current Rating
0.5 amperes resistive load seventh voltage
Contact Load Current Rating
1.0 amperes resistive load sixth voltage
Contact Load Current Rating
10.0 amperes resistive load first voltage
Contact Load Current Rating
5.0 amperes resistive load second voltage
Contact Voltage Rating In Volts
120.0 ac at sea level first voltage
Contact Voltage Rating In Volts
120.0 dc at sea level seventh voltage
Contact Voltage Rating In Volts
24.0 dc at sea level fifth voltage
Contact Voltage Rating In Volts
240.0 ac at sea level second voltage
Contact Voltage Rating In Volts
250.0 dc at sea level eighth voltage
Contact Voltage Rating In Volts
480.0 ac at sea level third voltage
Contact Voltage Rating In Volts
48.0 dc at sea level sixth voltage
Contact Voltage Rating In Volts
600.0 ac at sea level fourth voltage
Frequency In Hertz
60.0 first voltage
Frequency In Hertz
60.0 fourth voltage
Frequency In Hertz
60.0 eighth voltage
Frequency In Hertz
60.0 fifth voltage
Frequency In Hertz
60.0 second voltage
Frequency In Hertz
60.0 seventh voltage
Frequency In Hertz
60.0 sixth voltage
Frequency In Hertz
60.0 third voltage
Thread Series Designator
Npt single threaded hole
NSN
5930-01-463-8500
Part Number
81-20126-A1
Description
Switch,proximity
CAGE
04553

A switch designed to perform the function of opening and/or closing one or more electrical circuits. The switching function is accomplished by means of separable contacts, semiconductor devices, or a combination of separable contacts and semiconductor devices. The item functions in response to electrical changes in its internal circuit caused by capacitance, inductance, or magnetic flux changes. It is activated by permanent magnets, metallic materials, or nonmetallic materials which come within its sensing range. For sensing switches which respond to changes other than capacitance, inductance, or magnetic flux, see switch, airflow; switch, centrifugal; switch, inertia; switch, pressure; switch, pressure-thermostatic; switch, thermostatic; and switch, tilt.

Part 81-20126-A1 NSN 5930-01-463-8500

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
35487
FIIG:
A048B0
Concept No.:
App. Key:
C
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
P
PMIC:
A
ESD:
A
ESD:
A
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 8536509065
  • SITC: 77255
  • End Use: Electric apparatus
  • NAICS: 335931
  • USDA: 1

Freight Class: Switches, for a voltage not exceeding 1000 volts, nesoi

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